The invention relates to the switch field, and discloses a switch with magnetic damping; the switch comprises a fixed member, stir units connected in order, a swing sheet with contact points and metalwiring ends with contact points; the stir units, the swing sheet and the metal wiring end are fixed on the fixed member; the swing sheet is arranged in the vertical direction, and can swing in the horizontal direction along with motions of the stir units; the contact points are respectively arranged on two side faces of the swing sheet; the contact points of the metal wiring end are matched withthat of the swing sheet; the switch also comprises a support member used for supporting the swing sheet; the support member is connected with one metal wiring end; the two sides of the swing sheet arerespectively provided with magnetic points; a metal rack fixed on the fixed member is arranged above the swing sheet; the metal rack extends in the swing sheet direction; when the swing sheet swingsto the position making contacts with the contact point of the metal wiring end, the magnetic points are jointed with the metal rack. The switch can effectively solve the strong current on-off archingproblems and that self-ballast on-off firing fusion cannot break.